Window Air Conditioners

Window air conditioners are room air conditioners designed to install inside a window. These cooling systems help keep areas in your home, office, or business cool and comfortable and often provide better targeted cooling than your central air conditioning system. Window air conditioner models are available in a variety of sizes and cooling capacities, and they can be used as primary cooling sources for one or more rooms or in conjunction with your existing central AC. Window air conditioning units are most often installed inside vertical-sash windows. They sit on top of a window frame in a partially opened window, with the warm air exhaust system facing to the outside and the cooling system directed to the inside of your room. Some window AC units can alternatively be installed directly through a wall that faces the outside if a window is not available.

Whether you need a small window air conditioner to cool a bedroom or a larger unit to cool an office, we have the right model for you. Use the filters on the left to search our window ACs by cooling capacity, brand, and price. You can also sort your results below to view only our bestselling and top user-rated models.

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Generally, window air conditioners are cheaper to install than central ACs and—when sized appropriately and used smartly—less expensive to run over the long-term. Likewise, window ACs can help you save on energy costs when they are used as supplemental air conditioners in hard-to-cool areas. In this application, you won't need to continue cranking up a whole-house air conditioner in order to address one specific area. These money-saving advantages, in addition to your ability to store the unit away during the colder months, make a window AC a great choice for cooling small- to large-sized rooms in the warmer months.

Many window ACs are designed with a slide-out chassis, on which the main cooling unit sits inside a mounting sleeve. First, the mounting sleeve is installed in the window or wall, and the window air conditioner slides into the sleeve. This feature makes installation easier and also provides easy access to the unit for maintenance tasks or, eventually, for replacement.

We offer a wide range of powerful, yet highly efficient, window air conditioners from many of the industry's most respected brands.

If durability and flexibility are top of mind, browse our Friedrich window air conditioner models. Featuring Energy Star window air conditioner ratings, our Friedrich window ACs are constructed with high-grade materials, such as heavy-gauge steel and rust-free aluminum, to help them stand up to the elements and to the strain of long-term use. For flexibility in installation and maintenance, these window AC units are also installed with a slide-out chassis to give you virtually effortless access.

Performing doubly-duty, our Soleus window air conditioner models provide year-round comfort. The popular Soleus Air KC-35HA Window Air Conditioner and Heater features 3 cooling settings and 3 heat settings designed to keep you comfortable throughout all seasons. In addition, many Soleus Air window ACs use the eco-friendly R-410A refrigerant to help reduce their impact on the planet.